CN100549496C - Light source cell - Google Patents
Light source cell Download PDFInfo
- Publication number
- CN100549496C CN100549496C CNB2005101184643A CN200510118464A CN100549496C CN 100549496 C CN100549496 C CN 100549496C CN B2005101184643 A CNB2005101184643 A CN B2005101184643A CN 200510118464 A CN200510118464 A CN 200510118464A CN 100549496 C CN100549496 C CN 100549496C
- Authority
- CN
- China
- Prior art keywords
- base component
- concave mirror
- discharge lamp
- light source
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2026—Gas discharge type light sources, e.g. arcs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Projection Apparatus (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Endoscopes (AREA)
Abstract
A kind ofly can not damage the specular cross section of speculum and effectively be used to the electric insulation distance limit of mirror back surface in minimum zone, be made the light source cell of mirror unit miniaturization from the output of the light of lamp.This light source cell, discharge lamp with concave mirror and sealed at both ends type, one side's sealing of this discharge lamp is fixed on the base component, this base component be fixed on this concave mirror head peristome and constitute, from the directly outstanding external terminal of this side sealing of this discharge lamp or be connected supply lines on this external terminal and be connected on the described base component or remain on the terminal component on the described base component and constitute.
Description
Technical field
The light source cell that the present invention relates to for example to be used for the employing short arc type high-pressure discharge lamp of liquid crystal projection apparatus and have concave mirror.
Background technology
Lighting source as for example liquid crystal projection apparatus, use comprises the light source cell of illuminator and concave mirror, illuminator is made of for example discharge lamp such as extra-high-pressure mercury vapour lamp, metal halide lamp, concave mirror projects the place ahead expeditiously to the light of launching from this illuminator, and light projection mouth is arranged in front.
Fig. 6 represents the cutaway view of a kind of light source cell of in the past using.This light source cell 10 ' has the concave mirror 20 ' of band tubular head 25 ', in the rearward end of the tubular head 25 ' of this concave mirror 20 ', fixing tubular base component with adhesive 55 ' with the internal diameter that is consistent with the external diameter of this tubular head 25 '.Discharge lamp 30 ' is sealed at both ends type lamp, have luminous tube portion 32 ' that is wherein disposing a pair of comparative electrode and the discharge vessel 31 ' that has the 33 ' A of sealed tube portion, 33 ' B in its both sides, on the 33 ' A of one sealed tube portion metallic lamp holder 45 is arranged, metallic lamp holder 45 ' is fixed on the base component 40 '.
In recent years, for liquid crystal projection apparatus, people thirsted for miniaturization more, required also to realize that for the light source cell as lighting source miniaturization is to dwindle its accommodation space.Specifically, metallic lamp holder occurred not having and directly 33 ' the A of sealed tube portion waited with adhesive 55 ' and be fixed on the concave mirror 20 ', make miniaturization that the speculum head narrows down light source cell.Fig. 7 represents a wherein example.In this example, the conducting line 60 ' A that passes the sealing of lamp passes through the head peristome 25K of concave mirror, is introduced to the concave mirror outer surface, is connected on the contact component 91 ' that is located on the concave mirror outer surface.But, because perforate 24 ' is set the S of connection point terminal portion is set then on the part of concave mirror 20 ', so dwindled the usable floor area of utilizable mirror surface originally, damaged function as light source cell.For example, 1 connection point terminal portion can make the folded light beam amount reduce about 2%.
Also have, owing to connect by perforate 24 ' with conducting line 60 ' B the contact component 90 ' on from external terminal 50 ' B to concave mirror 20 ', thereby in the concave mirror 20 ' expanded range that insulate on every side, if the words of discharge lamp are because the applying high voltage when starting is necessary to keep insulation distance more.
In addition, the reflecting surface of concave mirror has become the light in reflect visible light district and cold reflector that the light of ultra-violet (UV) band, infrared region is passed through.In the example of Fig. 7, omitted the lining of electrical wiring etc., but generally till the back side of concave mirror is from the external terminal to the contact component, be laid with the conducting line of the lining material that has silicon cave resin etc. for insulation.Yet, sometimes the light that is through the ultra-violet (UV) band that speculum comes owing to the lining electrical wiring at the concave mirror back side in liquid crystal projection apparatus for example constantly shines, lining materials etc. in use cause UV degradation, evaporating into of therefrom producing paid separately on the optical lens of speculum and periphery etc., thereby damages the optical characteristics that they have.
Right document 1: the spy opens the 2003-7101 communique
Right document 2: special table 2003-523607 communique
Summary of the invention
Problem of the present invention is can provide a kind of not damage the specular cross section of speculum and effectively be used to from the output of the light of lamp, the electric insulation distance limit of mirror back surface in minimum zone, the UV degradation that the difficult light that produces the ultra-violet (UV) band of being injected by the penetration mirror of the lining electrical wiring that is configured in the concave mirror back side is caused, the light source cell of realization mirror unit miniaturization.
To this, the 1st invention is a kind of light source cell, discharge lamp with concave mirror and sealed at both ends type, one side's sealing of this discharge lamp is fixed on the base component, this base component be fixed on this concave mirror head peristome and constitute, it is characterized in that, from the directly outstanding external terminal of this side sealing of this discharge lamp or be connected supply lines on this external terminal and be connected on the terminal component that remains on the said base parts and constitute.
Also have, the 2nd invention is a kind of light source cell, discharge lamp with concave mirror and sealed at both ends type, one side's sealing of this discharge lamp is fixed on the base component, this base component be fixed on this concave mirror head peristome and constitute, it is characterized in that, from the directly outstanding external terminal of this side sealing of this discharge lamp or be connected supply lines on this external terminal and be connected with the said base parts and constitute.
According to the 1st invention and the 2nd invention, owing to can reducing the contact component that the reflective surface area that causes the concave surface transmitting mirror is dwindled, thereby the light utilization efficiency of light source cell maintains on the high level.
Also have, the electric insulation scope of mirror back surface can reduce, and guarantees under the situation about starting applying high pressure that the necessary scope of creepage distance also can be dwindled, thereby helps the miniaturization of device.Also have the adding number, reduce the labour and the time of setting up contact component and reduced manufacturing cost of the perforate by reducing speculum.And, owing to can shorten the lining electrical wiring that is arranged on the concave mirror back side, thus electrical wiring be not easy to produce the UV degradation that causes by the light that sees through the ultra-violet (UV) band of coming from speculum by material.In addition, even under lining electrical wiring situation about being stretched, also can suppress this tensile force by terminal component or the screw portion that is positioned at portion of terminal, make supply lines not be subjected to useless power, the jag part of the external terminal of sealed tube portion can be damaged.
Description of drawings
Fig. 1 represents the cutaway view of an embodiment of light source cell of the present invention.
Fig. 2 represents the cutaway view of another embodiment of light source cell of the present invention.
Fig. 3 represents the cutaway view of another embodiment of light source cell of the present invention.
Fig. 4 represents the cutaway view of another embodiment of light source cell of the present invention.
Fig. 5 represents the enlarged drawing of an example of supply lines coupling part.
Fig. 6 represents the cutaway view of the structure of existing light source cell.
Fig. 7 represents the cutaway view of the structure of existing light source cell.
The specific embodiment
Embodiments of the present invention below are described.Among the figure afterwards, the content of omitting about each parts such as the electrode in the discharge vessel of discharge lamp, metal formings is described.Also have, sometimes set up the front glass that cuts off infrared ray and explosion-proof usefulness, but omitted on the drawing in the front openings side of the concave mirror of optical unit.
Fig. 1 is the explanation cutaway view of an example of the formation of expression light source cell of the present invention.Fig. 1 (a) expression is as the summary section of the light source cell of exemplary embodiment of the present invention.The discharge lamp 30 of sealed at both ends type is provided in the concave mirror 20.Discharge lamp 30 has the discharge vessel 31 of quartz glass system, the 33A of sealed tube portion, 33B that discharge vessel 31 has luminous tube portion 32 and extends in its both sides.One side's sealed tube 33A of portion inserts logical in speculum head 25, is fixed on the base component 40 with adhesive 55.Base component 40 usefulness adhesives 55 are fixed on the speculum head 25.Discharge lamp 30 is extra-high-pressure mercury vapour lamp or metal halide lamp. External terminal 50A, 50B are directly outstanding to the outside from the 33A of sealed tube portion, 33B respectively.And there is not a metallic lamp holder.The external terminal 50B of the front face side of speculum is connected material 51B and is connected on the conducting line 60B, is being connected with aperture element 72 on the terminal 82A of lining electrical wiring 82 in the perforate 24 of concave mirror.
On the other hand, be connected with conducting line 60A by attaching parts 51 to the outstanding external terminal 50A of foreign side from sealing 33A.Conducting line 60A is connected on the metal terminal component 70 with screw 71, and is connected with terminal 81A.Terminal component 70 bending along with the shape of base component 40 is by base component 40 and concave mirror 20 clampings and kept.The outside drawing of the light source cell 10 of Fig. 1 (b) presentation graphs 1 (a), the appearance that expression terminal component 70 is kept by base component 40 clampings.External terminal and conducting line etc. have been omitted.Base component 40 has resistance to sudden heating, is made by the ceramic material with electrical insulation capability, is in non-electric-connecting state beyond conductor.
Adopt such structure can reduce the outfit quantity of mirror surface upper contact material, improve light utilization efficiency.Also have, the electric insulation scope of mirror back surface can reduce, and guarantees under the situation about starting applying high pressure that the necessary scope of creepage distance also can be dwindled, thereby helps the miniaturization of device.Also have the adding number, reduce the labour and the time of setting up contact component and reduced manufacturing cost of the perforate by reducing speculum.And, can shorten concave mirror back side configuration the lining electrical wiring, suppress the undesirable condition that brings by the deterioration of the lining material that sees through the electrical wiring that ultraviolet ray that transmitting mirror injects causes.
Also have, even under the situation that lining electrical wiring 81 is stretched, the screw 71 that is positioned on the terminal component 70 also can suppress tensile force, thereby supply lines 60A is not applied useless power, and the ledge of the external terminal 50A of the 33A of sealed tube portion breakage can not occur.
In addition, also external terminal 50A can be prolonged bending, be directly connected in the screw portion 71.
Fig. 2 (a) is the variation of Fig. 1 (a), and terminal component 70 is a ring-type, and the bend that the ring of terminal component 70 is provided with is embedded in the groove 73 that forms on the end regions side face of base component 40 and is kept.External terminal 50A is connected on supply lines 60A, the 60B with being connected material 51A, 51B respectively with 50B, and supply lines 60A is connected on the terminal component 70 with methods such as welding.Supply lines 60B is connected with the terminal 82A of eyelet material 72 with lining electrical wiring 82 in the perforate 24 of concave mirror.Fig. 2 (b) is the figure of the base component integral body seen from the light source cell rear of expression.Bend in the groove of built-in end subassembly 70 dots.
Adopt such structure can reduce the outfit quantity of mirror surface upper contact parts, improve light utilization efficiency.Also have, the electric insulation scope of mirror back surface can reduce, and guarantees under the situation about starting applying high pressure that the necessary scope of creepage distance also can be dwindled, thereby helps the miniaturization of device.Also have the adding number, reduce the labour and the time of setting up contact component and reduced manufacturing cost of the perforate by reducing speculum.And, can shorten concave mirror back side configuration the lining electrical wiring, suppress the undesirable condition that brings by the deterioration of the lining material that sees through the electrical wiring that ultraviolet ray that transmitting mirror injects causes.
Also have, even under the situation that lining electrical wiring 81 is stretched, the screw 71 that is positioned on the terminal component 70 also can suppress tensile force, thereby supply lines 60A is not applied useless power, and the jag part of the external terminal 50A of the 33A of sealed tube portion breakage can not occur.
In addition, also external terminal 50A can be prolonged bending, be directly connected on the screw 71.
Fig. 3 represents use side subassembly not and directly fixed screw 71 is fixed on example on the base component 40.In this case, must be noted that the defective of the base component of pottery system, the screw Tightening moment strength control in the time of can constructing by handle is dealt with in suitable scope.
Fig. 4 represents to have thinner wall section 40U on the base component 40, and this thinner wall section 40U is provided with through hole 40a, the example that the supply lines 60A that external terminal 50A upward connects is connected with terminal component 81A by this through hole 40a with aperture element 72.Local figure in the circle is a through hole 40a enlarged drawing nearby.
Adopt such structure can reduce the outfit quantity of mirror surface upper contact material, improve light utilization efficiency.Also have, the electric insulation scope of mirror back surface can reduce, and guarantees under the situation about starting applying high pressure that the necessary scope of creepage distance also can be dwindled, thereby helps the miniaturization of device.Also have the adding number, reduce the labour and the time of setting up contact component and reduced manufacturing cost of the perforate by reducing speculum.And, can shorten concave mirror back side configuration the lining electrical wiring, suppress the undesirable condition that brings by the deterioration of the lining material that sees through the electrical wiring that ultraviolet ray that transmitting mirror injects causes.
Also have, even under the situation that lining electrical wiring 81 is stretched, can suppress this tensile force with the base component 40 that leaves aperture element 72 yet, thereby supply lines 60A not applied useless power, the ledge of the external terminal 50A of the 33A of sealed tube portion breakage can not occur.
Also have, Fig. 5 is the figure of another kind of fixing means of the supply lines 60A of the expression through hole 40a that used Fig. 4, as shown in Figure 5, supply lines 60A and terminal 81A are inserted in the metal parts 85 that is made of the copper alloy that is provided with flange 86 at front end etc., fix with riveting or weld methods such as 87.Also can be inserted among the through hole 40a of base component shown in Figure 4 40, fix with flange 86.Fig. 5 (b)～(d) expression connects the order of supply lines 60A and terminal 81A.Do the configuration quantity of the contactor material that also can reduce mirror back surface like this, improve light utilization efficiency.Also have, the electric insulation scope of mirror back surface can reduce, and guarantees under the situation about starting applying high pressure that the necessary scope of creepage distance also can be dwindled, thereby helps the miniaturization of device.Also have the adding number, reduce the labour and the time of setting up contact component and reduced manufacturing cost of the perforate by reducing speculum.And, when being subjected to stretching, lining electrical wiring 81 can suppress this tensile force with base component 40, and make supply lines not be subjected to useless power, the jag part of the external terminal 50A of the 33A of sealed tube portion breakage can not occur.
Claims (1)
1. light source cell, the discharge lamp with concave mirror and sealed at both ends type, side's sealing of this discharge lamp is fixed on the base component, this base component be fixed on this concave mirror head peristome and constitute, it is characterized in that,
This of this discharge lamp side's sealing exposes to the outside from this base component, the directly outstanding external terminal or be connected the supply lines on this external terminal and be connected with terminal component by fixed screw and constitute from the end of this this side sealing that exposes to the terminal of the lining electrical wiring of this discharge lamp power supply, this terminal component is crooked along with the shape of described base component, and is kept by this base component and described concave mirror clamping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004361331 | 2004-12-14 | ||
| JP2004361331A JP4492337B2 (en) | 2004-12-14 | 2004-12-14 | Light source unit |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910165979A Division CN101639173A (en) | 2004-12-14 | 2005-10-28 | Light source unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1789787A CN1789787A (en) | 2006-06-21 |
| CN100549496C true CN100549496C (en) | 2009-10-14 |
Family
ID=36123097
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910165979A Pending CN101639173A (en) | 2004-12-14 | 2005-10-28 | Light source unit |
| CNB2005101184643A Expired - Fee Related CN100549496C (en) | 2004-12-14 | 2005-10-28 | Light source cell |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910165979A Pending CN101639173A (en) | 2004-12-14 | 2005-10-28 | Light source unit |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7758213B2 (en) |
| EP (1) | EP1672664A3 (en) |
| JP (1) | JP4492337B2 (en) |
| CN (2) | CN101639173A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5477757B2 (en) * | 2007-07-17 | 2014-04-23 | ウシオ電機株式会社 | Light source device |
| EP2017668B1 (en) | 2007-07-17 | 2011-06-22 | Ushiodenki Kabushiki Kaisha | Light source device having noise reduction properties |
| CN101821832B (en) * | 2007-10-09 | 2012-03-21 | 奥斯兰姆有限公司 | High-pressure discharge lamp |
| JP5035682B2 (en) * | 2007-11-09 | 2012-09-26 | ウシオ電機株式会社 | Light source device |
| WO2009143887A1 (en) * | 2008-05-29 | 2009-12-03 | Osram Gesellschaft mit beschränkter Haftung | Explosion protection system for a high pressure lamp |
| US8581482B2 (en) * | 2009-04-30 | 2013-11-12 | Osram Sylvania Inc. | PAR lamp and method of making same |
| TWM367495U (en) * | 2009-06-09 | 2009-10-21 | Arclite Optronics Corp | Electrical connector and illuminating module |
| US20110044051A1 (en) * | 2009-08-24 | 2011-02-24 | Glory Praise Photronics Corp. | Conductive element and lamp using the same |
| JP2012182014A (en) * | 2011-03-01 | 2012-09-20 | Ushio Inc | Light source device |
| CN105452057A (en) * | 2013-07-30 | 2016-03-30 | 皇家飞利浦有限公司 | Thermal function of headlight sealing cap |
| JP5620598B1 (en) | 2014-03-10 | 2014-11-05 | パナソニック株式会社 | Light source unit and projector including the light source unit |
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| GB534181A (en) * | 1939-01-13 | 1941-02-28 | British Thomson Houston Co Ltd | Improvements relating to bases for electric lamps and similar devices |
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| US4053809A (en) * | 1976-06-18 | 1977-10-11 | General Electric Company | Short-arc discharge lamp with starting device |
| US4654557A (en) * | 1985-04-12 | 1987-03-31 | Gte Products Corporation | Lamp holder assembly having rotatable base |
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| US5235498A (en) * | 1991-02-21 | 1993-08-10 | U.S. Philips Corporation | Lamp/reflector assembly and electric lamp for use therein |
| KR100326687B1 (en) * | 1992-10-30 | 2002-06-20 | 요트.게.아. 롤페즈 | Electric lamp and reflector device |
| JP3184404B2 (en) * | 1994-07-13 | 2001-07-09 | 松下電子工業株式会社 | Metal halide lamp with reflector |
| US5747919A (en) * | 1994-12-29 | 1998-05-05 | Philips Electronics North America Corporation | Electric lamp having a hybrid skirted lamp base |
| JP3269349B2 (en) * | 1995-08-30 | 2002-03-25 | ウシオ電機株式会社 | Lamp device |
| JPH09283014A (en) * | 1996-02-14 | 1997-10-31 | Toshiba Lighting & Technol Corp | Dc lighting type discharge lamp, dc lighting type discharge lamp lighting device, floodlighting device and projector device |
| EP0802561B1 (en) * | 1996-04-19 | 2000-07-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Halogen lamp |
| US6002197A (en) * | 1996-04-24 | 1999-12-14 | Ushiodenki Kabushiki Kaisha | Metal halide lamp light source device having conducting wire positioned to prevent it from casting a shadow |
| US6559600B1 (en) * | 1998-11-17 | 2003-05-06 | Matsushita Electric Industrial Co., Ltd. | Discharge lamp, light source and projecting display unit |
| WO2001061730A1 (en) * | 2000-02-15 | 2001-08-23 | Koninklijke Philips Electronics N.V. | Electric lamp/reflector unit |
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-
2004
- 2004-12-14 JP JP2004361331A patent/JP4492337B2/en not_active Expired - Fee Related
-
2005
- 2005-10-28 CN CN200910165979A patent/CN101639173A/en active Pending
- 2005-10-28 CN CNB2005101184643A patent/CN100549496C/en not_active Expired - Fee Related
- 2005-11-15 EP EP05024926A patent/EP1672664A3/en not_active Withdrawn
- 2005-11-18 US US11/281,383 patent/US7758213B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP4492337B2 (en) | 2010-06-30 |
| US20060126333A1 (en) | 2006-06-15 |
| CN1789787A (en) | 2006-06-21 |
| JP2006172810A (en) | 2006-06-29 |
| US7758213B2 (en) | 2010-07-20 |
| CN101639173A (en) | 2010-02-03 |
| EP1672664A3 (en) | 2008-07-09 |
| EP1672664A2 (en) | 2006-06-21 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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